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Firlakuza [10]
3 years ago
8

Technician A that shielding gas nozzles may have different shapes. Technician B says that gelding gas nozzles is attached to the

shielding gas cylinder. Who is right?
Engineering
1 answer:
Lilit [14]3 years ago
5 0
B is correct! in this senecio
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Two hemispherical shells of inner diameter 1m are joined together with 12 equally spaced bolts. If the interior pressure is rais
aliina [53]

Answer:

  F = 2,355 10⁵ N

Explanation:

The pressure is distributed throughout the sphere with the same value and is defined by

           P = F / A

           F = P A

Therefore, on each bolt there is an internal force and external force

      ∑ F = F_int - F_ext

      ∑ F = P_int A - P_atm A

      F = A (P_int - P_atm)

     P_int = 300 10³ + P_atm

     F = A 300 10³

The area of ​​the sphere layer is

    A = π r² = π/ 4 d²

    A = π / 4 1²

    A = 0.785 m2

   

    F = 0.785 (300 10³)

    F = 2,355 10⁵ N

6 0
3 years ago
All of the following have the same units except: Group of answer choices resistance capacitive reactance. inductance. impedance.
Brilliant_brown [7]

Answer:

nnn

Explanation:

3 0
2 years ago
A refrigerator operating on the Carnot cycle is used to make ice. Water freezing at 32oF is the cold reservoir. Heat is rejected
Mnenie [13.5K]

Answer:

Explanation:

From the given information:

Water freezing temp. T_L = 32 ^0 \ F

Heat rejected temp T_H = 72 ^0 \ F

Recall that:

The coefficient of performance is:

COP_{ref} = \dfrac{T_L}{T_H - T_L} \\ \\  = \dfrac{32+460}{(72 +460) -(32+460)} \\ \\ =\dfrac{492}{532 -492} \\ \\ = \dfrac{492}{40} \\ \\ COP_{ref} = 12.3

Again:

The efficiency given by COP can be represented by:

COP = \dfrac{Q_L}{W} \\ \\ W = \dfrac{Q_L}{COP} \\ \\ W = \dfrac{2000 \ lbm \times 144 \ Btu/lbm}{12.3} \\ \\ W = 23414.63 \ Btu

Finally; the power input in an hour can be determined by using the formula:

Power= \dfrac{W}{t} \\ \\  Power = \dfrac{23414.63 \ Btu}{ 1 \ hr} \\ \\  Power = \dfrac{23414.634 \times 1055.056 \ J}{1 \times 3600} \\ \\  Power  = 6.86 \ kW

In hp; since 1 kW = 1.34102 hp

6.86kW will be = (6.86 × 1.34102) hp

= 9.199 hp

7 0
3 years ago
Which of the following allows team members to visualize a design model from a variety of perspectives?
julsineya [31]

Answer: from what i know im pretty sure its isometrics or sketches im certain its sketches but not 100%

Explanation: A sketch is a rapidly executed freehand drawing that is not usually intended as a finished work. A sketch may serve a number of purposes: it might record something that the artist sees, it might record

8 0
3 years ago
Read 2 more answers
A screw is a simple machine that can be described as an inclined plane wrapped around a cylinder.
Phoenix [80]

Answer:

thanks thanks thanks thanks

Explanation:

7 0
3 years ago
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